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Solar desalination process and apparatus

A technology of solar energy and solar evaporator, which is applied in seawater treatment, water/sewage treatment, general water supply conservation, etc., and can solve the problems of unable to meet the production requirements of low energy consumption, high energy consumption of equipment operation, and high production costs

Inactive Publication Date: 2008-11-19
项公浩
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] Existing seawater desalination devices generally use steam heating or electric heating, which consumes a lot of energy in operation and high production costs, and cannot meet the production requirements of low energy consumption

Method used

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  • Solar desalination process and apparatus

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Embodiment Construction

[0008] The present invention is a solar seawater desalination process, which is characterized in that: after the seawater is filtered, it is sent to the raw water pool, and then the water supply pump is sprayed into the uniform distributor above the solar falling film evaporator, and then flows into the solar falling film evaporator, and the water flows from the top to the bottom. The bottom is forced to form a film, heat and evaporate, and then enter the separator for steam-water separation. The water vapor is condensed into fresh water by the condenser, and the fresh water flows into the fresh water pool from top to bottom. It is sent to the solar falling film evaporator, and the seawater is desalinated in the form of cyclic evaporation. The seawater is continuously cyclically evaporated and its concentration is continuously increased. When it reaches supersaturation, the precipitated crystals settle below the separator, and the valve is opened to discharge the crystals to obt...

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Abstract

The invention provides a process for desalting sea water by solar energy and a device adopting the process. The method is as follows: the pumped sea water is filtered and injected in a solar energy falling-film evaporator by a water pump, and the water flow is forced to be filmed from the top down and then heated for evaporation, and the water enters in a separator for steam-water separation, and the steam is condensed to be fresh water by a condenser, and the remained water enters a solar-energy evaporator for secondary heating and is sent to the solar-energy falling-film evaporator by the water pump again, and the circular evaporation for sea water desalting is achieved; the device comprises the water pump, a flowmeter, the condenser, a steam separator and a settling tank; moreover, the device also comprises the solar-energy evaporator, a water supply equalizer, a the solar-energy falling-film evaporator and a self-energy radiator, wherein the solar-energy falling-film evaporator(6) which is 90 degrees against the horizontal plane is arranged on the whole device, and the solar-energy evaporator(9) which is 25 degrees against the horizontal plane is arranged below the separator. Because the device utilizes the solar energy, the energy consumption of the device is low.

Description

technical field [0001] The invention relates to an evaporation recovery process, a process and a device which use solar energy as a heat source and can vaporize seawater under the heat of solar energy to produce high-quality fresh water. Background technique [0002] Existing seawater desalination devices generally use steam heating or electric heating, which consumes a lot of energy in operation and high production cost, and cannot meet the production requirements of low energy consumption. Such as steam-heated seawater desalination device, including seawater tank, feed water pump, steam chamber, condenser, separator, cooling water pool, cooling water pump and fresh water pool, etc. Contents of the invention [0003] The object of the present invention is to provide a process and device which can produce high-quality fresh water by gasifying seawater below the boiling point of seawater by using solar energy as energy. The process of solar seawater desalination is: the ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/14C02F103/08
CPCY02A20/124Y02A20/142Y02A20/212
Inventor 姜新明项公浩项公文
Owner 项公浩
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